Date-Time group interval not working with Nullable(Of DateTime) data

Hi Sigurd,

Thank you for the report. GroupInterval works with the nullable(Of DateTime) fields. If you mean new FilterPopupMode, it also works. But, in this case, you should set the column's OptionsFilter.FilterPopupMode = DevExpress.XtraGrid.Columns.FilterPopupMode.DateSmart;

Thanks,
Plato

Hi,

I get different results. I have a class which has a Date defined as nullable (see code below). When I group by this column, I don't get the new datetime interval options.

When I make an unbound column using the expression editor (based on the nullable date) and mark the field DateTime instead of Bound, I do get the datetime interval options.

Greetings,
Sigurd

      <System.ComponentModel.DisplayName("SUB J_ Cre Dat")> _
        Public Overridable Property SUBJ_CreDat_Value As Nullable(Of DateTime)
               Get 'get accessor method
                    If SUBJ_CreDat Is Nothing Then
                         Return Nothing
           Else If SUBJ_CreDat.IsNull Then
           Return Nothing
           Else
           Return SUBJ_CreDat.Value
           End If
               End Get
               Set(ByVal value As Nullable(Of DateTime)) 'set accessor method
           If Not value.HasValue Then
           SUBJ_CreDat.IsNull = True
           Else
           SUBJ_CreDat.Value = value.Value
           End If
               End Set
          End Property

Hi Sigurd,

Hmm, I am afraid, your answer did not help us to determine the cause of this issue. Could you please clarify what you meant by the "new datetime interval options">

Thanks,
Plato

Hi,

Please look at the attached sample. I've also included 2 pictures showing what happens. Normal DateTime fields can be grouped using intervals, Nullable DateTimes can't.

Greetings,
Sigurd